Nissan Maxima. Manual - part 938

POWER WINDOW SERIAL LINK

PWC-49

< DTC/CIRCUIT DIAGNOSIS >

[LH&RH FRONT WINDOW ANTI-PINCH]

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

Is the inspection result normal?

YES

>> Replace main power window and door lock/unlock switch. Refer to 

PWC-107, "Removal and

Installation"

. After that, refer to 

PWC-49, "FRONT POWER WINDOW SWITCH : Special Repair

Requirement"

NO

>> Repair or replace harness or connectors.

FRONT POWER WINDOW SWITCH : Special Repair Requirement

INFOID:0000000010051250

1.

 PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure. Refer to 

PWC-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY

NEGATIVE TERMINAL : Special Repair Requirement"

 and 

PWC-7, "ADDITIONAL SERVICE WHEN

REPLACING CONTROL UNIT : Special Repair Requirement"

.

>> GO TO 2

2.

 CHECK ANTI-PINCH OPERATION

Check anti-pinch operation. Refer to 

PWC-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGA-

TIVE TERMINAL : Special Repair Requirement"

 and 

PWC-7, "ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT : Special Repair Requirement"

.

>> End.

BCM connector

Terminal

Ground

Continuity 

M18 (A)

40

No

PWC-50

< DTC/CIRCUIT DIAGNOSIS >

[LH&RH FRONT WINDOW ANTI-PINCH]

POWER WINDOW LOCK SWITCH

POWER WINDOW LOCK SWITCH

Component Function Check

INFOID:0000000010051251

1.

 CHECK POWER WINDOW LOCK

Activate the power window lock switch and verify that the front power window RH, rear power window LH and

rear power window RH are inoperative.
Is the inspection result normal?

YES

>> Power window lock switch is OK.

NO

>> Refer to 

PWC-50, "Component Inspection"

.

Component Inspection

INFOID:0000000010051252

1.

 CHECK POWER WINDOW LOCK SWITCH 

1. Disconnect main power window and door lock/unlock switch connectors.

2. Check continuity between main power window and door lock/unlock switch (lock operation).

3. Check continuity between main power window and door lock/unlock switch (unlock operation).

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace main power window and door lock/unlock switch. Refer to 

PWC-107, "Removal and

Installation"

. After that, refer to 

PWC-50, "Special Repair Requirement"

Special Repair Requirement

INFOID:0000000010051253

1.

 PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure. Refer to 

PWC-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY

NEGATIVE TERMINAL : Special Repair Requirement"

 and 

PWC-7, "ADDITIONAL SERVICE WHEN

REPLACING CONTROL UNIT : Special Repair Requirement"

.

>> GO TO 2

Terminal

Main power window and door lock/unlock switch condition

Continuity

3

17

Rear LH

UP

No

5

Rear  RH

1

Rear LH

NEUTRAL

3

5

Rear RH

7

1

Rear LH

DOWN

7

Rear  RH

Terminal

Main power window and door lock/unlock switch condition

Continuity

3

17

Rear LH

UP

Yes

5

Rear  RH

1

Rear LH

NEUTRAL

3

5

Rear RH

7

1

Rear  LH

DOWN

7

Rear  RH

POWER WINDOW LOCK SWITCH

PWC-51

< DTC/CIRCUIT DIAGNOSIS >

[LH&RH FRONT WINDOW ANTI-PINCH]

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

2.

 CHECK ANTI-PINCH OPERATION

Check anti-pinch operation. Refer to 

PWC-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGA-

TIVE TERMINAL : Special Repair Requirement"

 and 

PWC-7, "ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT : Special Repair Requirement"

.

>> End.

PWC-52

< ECU DIAGNOSIS INFORMATION >

[LH&RH FRONT WINDOW ANTI-PINCH]

POWER WINDOW MAIN SWITCH

ECU DIAGNOSIS INFORMATION

POWER WINDOW MAIN SWITCH

Reference Value 

INFOID:0000000010051254

TERMINAL LAYOUT

PHYSICAL VALUES

MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH

LIIA2455E

Terminal No.

Description

Condition

Voltage [V]

(Approx.)

+

-

Signal name 

Input/

Output

1

(W)

Ground

Rear power window motor LH 
UP signal

Output

When rear LH switch in 
main power window and 
door lock/unlock switch is 
operated UP.

Battery voltage

2

(GR)

Ground Encoder ground

—

—

0

3

(Y)

Ground

Rear power window motor LH 
DOWN signal

Output

When rear LH switch in 
main power window and 
door lock/unlock switch is 
operated DOWN.

Battery voltage

4

(L)

Ground

Door key cylinder switch LH
LOCK signal

Input

Key position
(Neutral 

→ Locked)

5 

→ 0

5

(SB)

Ground

Rear power window motor RH 
DOWN signal

Output

When rear RH switch in 
main power window and 
door lock/unlock switch is 
operated DOWN.

Battery voltage

6

(R)

Ground

Door key cylinder switch LH
UNLOCK signal

Input

Key position
(Neutral 

→ Unlocked)

5 

→ 0

7

(P)

Ground

Rear power window motor RH 
UP signal

Output

When rear RH switch in 
main power window and 
door lock/unlock switch is 
operated UP.

Battery voltage

8

(L)

11

Front door power window mo-
tor LH UP signal

Output

When front LH switch in
main power window and 
door lock/unlock switch is 
operated UP.

 Battery voltage